#include <asm/io.h>
#include <asm/cacheflush.h>
-#include "sram.h"
+#include <asm/arch/sram.h>
+
+#define OMAP1_SRAM_PA 0x20000000
+#define OMAP1_SRAM_VA 0xd0000000
+#define OMAP2_SRAM_PA 0x40200000
+#define OMAP2_SRAM_VA 0xd0000000
-#define OMAP1_SRAM_BASE 0xd0000000
-#define OMAP1_SRAM_START 0x20000000
#define SRAM_BOOTLOADER_SZ 0x80
static unsigned long omap_sram_base;
static unsigned long omap_sram_ceil;
/*
- * The amount of SRAM depends on the core type:
- * 730 = 200K, 1510 = 512K, 5912 = 256K, 1610 = 16K, 1710 = 16K
+ * The amount of SRAM depends on the core type.
* Note that we cannot try to test for SRAM here because writes
* to secure SRAM will hang the system. Also the SRAM is not
* yet mapped at this point.
*/
void __init omap_detect_sram(void)
{
- omap_sram_base = OMAP1_SRAM_BASE;
+ if (!cpu_is_omap24xx())
+ omap_sram_base = OMAP1_SRAM_VA;
+ else
+ omap_sram_base = OMAP2_SRAM_VA;
if (cpu_is_omap730())
- omap_sram_size = 0x32000;
- else if (cpu_is_omap1510())
- omap_sram_size = 0x80000;
+ omap_sram_size = 0x32000; /* 200K */
+ else if (cpu_is_omap15xx())
+ omap_sram_size = 0x30000; /* 192K */
else if (cpu_is_omap1610() || cpu_is_omap1621() || cpu_is_omap1710())
- omap_sram_size = 0x4000;
+ omap_sram_size = 0x4000; /* 16K */
else if (cpu_is_omap1611())
- omap_sram_size = 0x3e800;
+ omap_sram_size = 0x3e800; /* 250K */
+ else if (cpu_is_omap2420())
+ omap_sram_size = 0xa0014; /* 640K */
else {
printk(KERN_ERR "Could not detect SRAM size\n");
omap_sram_size = 0x4000;
}
- printk(KERN_INFO "SRAM size: 0x%lx\n", omap_sram_size);
omap_sram_ceil = omap_sram_base + omap_sram_size;
}
static struct map_desc omap_sram_io_desc[] __initdata = {
{ /* .length gets filled in at runtime */
- .virtual = OMAP1_SRAM_BASE,
- .pfn = __phys_to_pfn(OMAP1_SRAM_START),
+ .virtual = OMAP1_SRAM_VA,
+ .pfn = __phys_to_pfn(OMAP1_SRAM_PA),
.type = MT_DEVICE
}
};
if (omap_sram_size == 0)
return;
+ if (cpu_is_omap24xx()) {
+ omap_sram_io_desc[0].virtual = OMAP2_SRAM_VA;
+ omap_sram_io_desc[0].pfn = __phys_to_pfn(OMAP2_SRAM_PA);
+ }
+
omap_sram_io_desc[0].length = (omap_sram_size + PAGE_SIZE-1)/PAGE_SIZE;
omap_sram_io_desc[0].length *= PAGE_SIZE;
iotable_init(omap_sram_io_desc, ARRAY_SIZE(omap_sram_io_desc));
+ printk(KERN_INFO "SRAM: Mapped pa 0x%08lx to va 0x%08lx size: 0x%lx\n",
+ omap_sram_io_desc[0].pfn, omap_sram_io_desc[0].virtual,
+ omap_sram_io_desc[0].length);
+
/*
* Looks like we need to preserve some bootloader code at the
* beginning of SRAM for jumping to flash for reboot to work...
omap_sram_size - SRAM_BOOTLOADER_SZ);
}
-static void (*_omap_sram_reprogram_clock)(u32 dpllctl, u32 ckctl) = NULL;
-
-void omap_sram_reprogram_clock(u32 dpllctl, u32 ckctl)
-{
- if (_omap_sram_reprogram_clock == NULL)
- panic("Cannot use SRAM");
-
- return _omap_sram_reprogram_clock(dpllctl, ckctl);
-}
-
void * omap_sram_push(void * start, unsigned long size)
{
if (size > (omap_sram_ceil - (omap_sram_base + SRAM_BOOTLOADER_SZ))) {
return (void *)omap_sram_ceil;
}
-void __init omap_sram_init(void)
+static void omap_sram_error(void)
+{
+ panic("Uninitialized SRAM function\n");
+}
+
+#ifdef CONFIG_ARCH_OMAP1
+
+static void (*_omap_sram_reprogram_clock)(u32 dpllctl, u32 ckctl);
+
+void omap_sram_reprogram_clock(u32 dpllctl, u32 ckctl)
+{
+ if (!_omap_sram_reprogram_clock)
+ omap_sram_error();
+
+ return _omap_sram_reprogram_clock(dpllctl, ckctl);
+}
+
+int __init omap1_sram_init(void)
{
- omap_detect_sram();
- omap_map_sram();
_omap_sram_reprogram_clock = omap_sram_push(sram_reprogram_clock,
sram_reprogram_clock_sz);
+
+ return 0;
+}
+
+#else
+#define omap1_sram_init() do {} while (0)
+#endif
+
+#ifdef CONFIG_ARCH_OMAP2
+
+static void (*_omap2_sram_ddr_init)(u32 *slow_dll_ctrl, u32 fast_dll_ctrl,
+ u32 base_cs, u32 force_unlock);
+
+void omap2_sram_ddr_init(u32 *slow_dll_ctrl, u32 fast_dll_ctrl,
+ u32 base_cs, u32 force_unlock)
+{
+ if (!_omap2_sram_ddr_init)
+ omap_sram_error();
+
+ return _omap2_sram_ddr_init(slow_dll_ctrl, fast_dll_ctrl,
+ base_cs, force_unlock);
+}
+
+static void (*_omap2_sram_reprogram_sdrc)(u32 perf_level, u32 dll_val,
+ u32 mem_type);
+
+void omap2_sram_reprogram_sdrc(u32 perf_level, u32 dll_val, u32 mem_type)
+{
+ if (!_omap2_sram_reprogram_sdrc)
+ omap_sram_error();
+
+ return _omap2_sram_reprogram_sdrc(perf_level, dll_val, mem_type);
+}
+
+static u32 (*_omap2_set_prcm)(u32 dpll_ctrl_val, u32 sdrc_rfr_val, int bypass);
+
+u32 omap2_set_prcm(u32 dpll_ctrl_val, u32 sdrc_rfr_val, int bypass)
+{
+ if (!_omap2_set_prcm)
+ omap_sram_error();
+
+ return _omap2_set_prcm(dpll_ctrl_val, sdrc_rfr_val, bypass);
+}
+
+int __init omap2_sram_init(void)
+{
+ _omap2_sram_ddr_init = omap_sram_push(sram_ddr_init, sram_ddr_init_sz);
+
+ _omap2_sram_reprogram_sdrc = omap_sram_push(sram_reprogram_sdrc,
+ sram_reprogram_sdrc_sz);
+ _omap2_set_prcm = omap_sram_push(sram_set_prcm, sram_set_prcm_sz);
+
+ return 0;
+}
+#else
+#define omap2_sram_init() do {} while (0)
+#endif
+
+int __init omap_sram_init(void)
+{
+ omap_detect_sram();
+ omap_map_sram();
+
+ if (!cpu_is_omap24xx())
+ omap1_sram_init();
+ else
+ omap2_sram_init();
+
+ return 0;
}
projects / linux-2.6-omap-h63xx.git / blobdiff